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 Explore Challenges

Weakened Handycipher — Part 5 Level 2

by Bruce Kallick, published on 6/28/2016

The Weakened Handycipher challenges serve as an exercise and use an intentionally weakened version of Handycipher. Part 5 is the same as Part 2, but uses an improved version of the cipher. It is ciphertext-only, but you are given some partial information about the key.